Anyone know what OS X (10.4, Intel, desktop) does?

Matt Sayler (sayler@thewalrus.org) on 5/15/07 wrote:
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>I have several OS X desktop boxes with at least 2GB of memory. I've heard that
>things like Parallels and VMWare have problems with machines with that much memory
>(which makes me think that OS X magically turns on PAE at some threshold).